Which Porsches had the Metzger engine?

[RDMcG]

I was thinking about this. Am I right in thinking the GT1 was the original car to use this, and detuned variants were then installed in the 996 GT3 and RS, 997GT3 and RS, and the 997 GT2RS. Were there any other road cars, (there were a handful of GT1s) that used this block?. Its officially history with the demise of the 997, I understand, due to new Euro regs.

[Flat6_3.6]

996TT and 996GT2 also, me thinks.

[ZeroH]

Flat6_3.6 said:

996TT and 996GT2 also, me thinks.

Yep and 997tt/gt2 also.

[agtlaw]

The GT3 engine is derived from the 3.2 litre turbocharged 911 GT1 racecar engine.

[Mousem40]

Basically, the 996 GT3 and 996 TT have same crankshaft, cylinder liners and cylinder blocks

However, the GT3 engine uses titanium con-rods and big end bolts as per the GT1. The turbo uses steel conrods (identical to those used on the 993 turbo).

The 996 turbo used smaller turbos than the GT1, diffferent camshafts, bore and stroke dimensions (same as the GT3 giving a capacity of 3.6l). The valves are larger on the GT3 as well.

All the engines were tilted at 2 degrees to offer a mild venturi effect.

Edited by Mousem40 on Thursday 12th August 00:53

[RDMcG]

You can always rely on PH. Were all the engines dry sump?

[lightweight]

Both the GT3 M96.79 engine and the Turbo M96.76 engines are dry sump.


Not to be confused with the M96.03 engine of the regular 996 which is not a proper dry sump.

Edited by lightweight on Thursday 12th August 10:19

[RDMcG]

Many thanks for the info!

[slivka]

Just out of interest, the first of a long series of racing engines designed by him was the 1.5 liter eight cylinder engine used in the Porsche 804 Formula 1 racing car, in which Dan Gurney won the French Grand Prix in 1962. He was also responsible for the he air-cooled twelve cylinder engine for the Porsche 917, which produced up to 1,200 horsepower in the 1973 CanAm version.

[Skittles001]

lightweight said:

Both the GT3 M96.79 engine and the Turbo M96.76 engines are dry sump.

Not to be confused with the M96.03 engine of the regular 996 which is not a proper dry sump.

Is the 997 Carrera engine (M97) a proper dry sump?

[supermono]

I love this stuff

SM

[Skittles001]

supermono said:

I love this stuff

SM

Likewise, some very knowledgeable people here

[agtlaw]

[GreigM]

Skittles001 said:

lightweight said:

Both the GT3 M96.79 engine and the Turbo M96.76 engines are dry sump.

Not to be confused with the M96.03 engine of the regular 996 which is not a proper dry sump.

Is the 997 Carrera engine (M97) a proper dry sump?

No, its fundamentally the same as the 996 and 986 (boxster) with a few mild tweaks....porsche call it a "semi-dry" sump - which to you and me means "wet sump but not as prone to oil starvation as others"

[TB993tt]

Guys the basic Mezger engine goes way further back, wasn't the original flat 6 the Mezger design ? The bottom end of the 997.1 turbo is very similar to the orginal 930 of 1977 isn't it ?

Up until recently GT3 crank cases had a 964 part number !

If you buy a set of Carrillo rods for your 997 GT2 or GT2 RS they will sell you the exact same ones which fit the 993 turbo !

The 993 turbo was the last air cooled turbo Mezger then the 996 turbo got bang up to date with the water cooled heads and proper head gaskets with the variable cam mechanism, but the bottom end and cylinders were the same I think ?

Edited by TB993tt on Sunday 15th August 13:53

[bridey0]

Hi, was the mezger engine used in the 997 gt3 gen 2 as well??

[anonymous-user]

ZeroH said:

Yep and 997tt/gt2 also.

Only 997.1 Turbo. 997.2 got a non-Metzger derived block.

[bridey0]

Greg66 said:

Only 997.1 Turbo. 997.2 got a non-Metzger derived block.

and the 997 gen 2 gt3?

[Davey S2]

agtlaw said:

Impressive but its not exactly a looker is it!

[NIgt3]

Greg66 said:

Only 997.1 Turbo. 997.2 got a non-Metzger derived block.

997.1 Turbo used a metzger block!! 997.2turbo did not. 997.2 gt3 used a metzger block also.